Frame of enclosed single axle driving mechanism bicycle



FIG. 1 is a top and right front perspective view of a frame of enclosed single axle driving mechanism bicycle showing my new design;

FIG. 2 is a front elevation view thereof;

FIG. 3 is a rear elevation view thereof;

FIG. 4 is a left side elevational view thereof;

FIG. 5 is a right side elevation view thereof; and,

FIG. 6 is a top plan view thereof, the bottom view being a mirror image of that shown. 

The ornamental design for a frame of enclosed single axle driving mechanism bicycle, as shown and described. 